Home / 236,658.43-326,601.92-129,238.45

Finding the Fourth Proportional to 236,658.43, 326,601.92 and 129,238.45

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Solution

The fourth proportional to 236,658.43, 326,601.92 and 129,238.45 is: 178,356.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,658.43 : 326,601.92 = 129,238.45 : x
  2. Step 2: Convert to fraction form
    236,658.43/326,601.92 = 129,238.45/x
  3. Step 3: Cross multiply
    236,658.43x = 326,601.92 × 129,238.45
  4. Step 4: Simplify right side
    236,658.43x = 42,209,525,907.82
  5. Step 5: Solve for x
    x = 42,209,525,907.82/236,658.43
  6. Step 6: Final answer
    x = 178,356.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.